It is very difficult to photographically isolate the swans, there are so many of them, and they silently glide away from the viewer. As they are not nesting they are socialable with one another and comfortable with close contact.
Tundra Swans rest in North Carolina where we have various wild life refuges for them. We get about 60% of all the Tundras and it appears there are about 90,000 individuals on the East coast.
In the play," Angels in America", the wings of the angel were, I believe, based on those of a swan. The angel was "terrible" in a biblical sense, fierce and beautiful.